Prasanth Sasikumar: I build things people wear on their face.

A hands-free voice and vision assistant for smart glasses: Swift on iOS with a Python agent bridge, built on Meta's Wearables Device Access Toolkit for Ray-Ban Display and also running on sub-100-dollar Realtek glasses.

Solo build

A browser simulator for waveguide smart-glasses displays. Because waveguides add light rather than emit it, it composites an interface over twenty scenes filmed through real Ray-Ban Meta glasses, from indoor to daylight.

Solo build

An AI assistant that gives field technicians real-time procedural guidance through the smart glasses they already own, escalating to a verified human expert only when its confidence drops. In customer discovery across US trades.

Founder

An open-source voice companion in the MacBook notch: it sees the screen, answers out loud, flies a cursor to the control you asked about, dictates into any app, and hands real work to a Codex agent. Swift shell, TypeScript core.

Solo build

Digital stamp cards for coffee shops in Apple Wallet and Google Wallet: magic-link shop onboarding, one-tap install with no app or account, a PIN-gated staff scanner, passes updating within seconds. Built for a real café in New Zealand.

Solo build

Clearing a garage or storage unit is slow because of the cataloguing, not the selling. Photograph everything and Clearspace finds every object, merges repeats into one draft, and writes a title, description and sourced price. Share or export a CSV.

Solo build

An open-source modular smart mirror platform for remote collaboration and personal assistance, rebuilt from a 2016 Raspberry Pi mirror made from a salvaged laptop panel and a one-way mirror cut to size.

Solo build

A lightweight, edge-deployable pipeline that estimates in real time how free the visual and auditory channels are from egocentric video and audio, and routes a notification to the freer one. Under 15 ms, under 1 MB, on the headset.

Second author

An embodied mixed-reality framework that turns a day of heart-rate variability from a smartwatch into one drink suggestion at a real vending machine, on Quest 3. Built with Asahi as industry partner.

First author

An MR system that uses gradual real-to-virtual transitions to guide pranayama-based relaxation, co-designed with five practitioners. A three-week field study with twelve participants improved sleep quality and stress.

Second author

A fingernail-mounted haptic device: two linear resonant actuators at the nail folds on a Teensy 4.0, using the funneling illusion to render spatial phantom sensations for in-air and on-surface mixed reality. Three user studies.

Co-developed the hardware

High- versus low-agency AR control compared across cognitive and physical timber-assembly tasks with 24 participants: low agency cut mental workload but also perceived autonomy. Then grounded with eight trained carpenters.

Second author

Data from roughly 400 players across 80 VR games, analysed for what drives cybersickness in active play. An explainable system for developers built on engineered features, not a black box, reviewed by eight VR professionals.

Third author

A large-scale real-world dataset for VR motion sickness research from a Meta-funded programme at NUS with Meta Reality Labs, plus models predicting sickness onset from interaction and environment parameters.

Programme lead, third author

A user study with 28 people on whether sharing heart rate, cognitive load and attention improves collaboration in VR assembly tasks, and what collaborators actually look at once the cues are on screen.

First author

A real-time AR caption interface tailored for deaf and hard-of-hearing students in specialised classrooms, designed around how they actually follow a lesson rather than around generic live captions.

Supervised the build

An optical see-through AR fire-safety training app on HoloLens 2, evaluated against video training: equal knowledge gained, higher intrinsic motivation and retained self-efficacy. Fed a successful Marsden Fund proposal.

Developer · Marsden grant

Affect and cognitive load read from ordinary free-hand gestures in VR with no extra sensors. With 22 participants, gesture speed, distance, hand tension and head motion predicted valence, arousal and load on a standard headset.

Second author

An AR artwork on HoloLens 2 that lets visitors feel the Māori hongi greeting. The haptic module is a shape-memory-alloy actuator in a 3D-printed housing, triggered wirelessly by an ESP8266 on cue from the app.

Haptic hardware

A cross-reality teleconference bridge that places a VR participant into a standard video-call grid, so 3D interaction survives contact with what people actually own: a laptop webcam and a Zoom window.

First author

A three-camera Azure Kinect volumetric capture rig with a custom C++ point-cloud stitching pipeline, reconstructing full-body volumetric video of an expert for playback inside AR assembly training.

First author

A user study separating shared eye gaze from shared hand gesture in mixed-reality remote collaboration, run on a rig of eight depth cameras. It is among the most-cited studies of the technique.

Second author

A real-time 3D reconstruction pipeline for mixed-reality remote collaboration: four calibrated Intel RealSense D435 sensors stitched into a live dense scene and streamed to a remote VR client in Unity.

First author

A dual-EEG hyperscanning study comparing inter-brain connectivity between pairs performing the same finger-tracking task in the real world and in VR, the first to compare the two settings directly.

Co-author

A multimodal haptic system for 360-degree cinematic VR: a vibrotactile vest plus wind and floor-vibration modules, with the actuator driver and Unreal Engine integration, evaluated in a presence study.

Solo build

An Azure Kinect tracking system for measuring pedestrian dynamics, built to inform evacuation planning research at Massey University, with a quick-start guide so the group could run captures unaided.

Built the system

An AR virtual pet that persists at a fixed spot in the room and communicates through posture, motion and ambient cues rather than voice. Now Biscuit, a FlowsXR product concept for Android XR headsets.

Solo build

A Mercedes-Benz showroom prototype on Magic Leap One for the Empathic Computing Lab: a life-size car placed in the room, with vehicle customisation and hand-tracked interaction instead of a controller.

Built the prototype

An AR overlay of breast bio-imaging data on HoloLens, registered to the body and world-stabilised, built for evaluation with the biomimetics group at the Auckland Bioengineering Institute.

Built the application

A projector and a depth camera turn a box of sand into a live topographic map that redraws as visitors dig, built for the national museum of New Zealand's innovation accelerator out of timber from a weekend job.

Solo build